Asked by Kankles.

1. A RADIO HUT QUALITY INSPECTOR EXAMINES A SAMPLE OF 50 RADIOS AND FINDS THAT 5 ARE DEFECTIVE. WHAT IS THE BEST PREDICTION OF THE NUMBER OF DEFECTIVE RADIOS IN A DELIVERY OF 200 RADIOS? *

195 radios

5 radios

20 radios

50 radios

Answers

Answered by mathhelper
prob(defect) = 5/50 = 1/10

so what is 1/10 of 200 ??
Answered by Kankles.
20?
Answered by mathhelper
of course.
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